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13 tháng 12 2022

Bài 1 : look and write have or has

2) has 3) have 4) has 5) have 6) have

Bài 2 : look at exercise 1. Write questions and answers

2. does Zoe have a goldfish

Yes, he does

3. do Dave and Brian have a model plane

No, they don’t

4. does the alligator have a long tail

Yes, it does

5. do Zoe, Dave and Brian have a picnic basket

Yes, they do

6. does Brian have a new bike

Yes, he does

Bài 3 : look. Write the correct sentences

1. She doesn’t have red hair. She has brown hair

2. Brian doesn’t have a small glasses. He has big glasses

3. Dave and Brian don’t have long hair. They have short hair

4. Corky doesn’t have a small beak. It has a big beak

5. Vicky doesn’t have a green dress. She has a blue dress

6. They frogs don’t have short legs. They have long legs

Bài 4 : put the words in the correct order. Write true answers

1. Do you have red hair ?

Yes, I do/ no I don’t

2. Does your best friend have a bike ?

Yes, he does/ no, he doesn’t

3. Do we have a new teacher ?

Yes, we do/ no we don’t

4. Do people have beaks ?

Yes, they do/ no they don’t

5. Do you have a computer ?

Yes, I do/ no I don’t

6. Does a frog have a tail ?

Yes, it do/ no it doesn’t

 

5 tháng 1 2022

bạn đăng tách ra tầm 10 câu mỗi lần đăng nha, chứ dài ntnay ngại làm lắm~

5 tháng 1 2022

e có tách 3 bài ra rồi ạ, phiền anh/chị/bạn giúp e với ạ, e cảm ơn ạ

6 tháng 2 2022

a)\(-1,6:\left(1+\dfrac{2}{3}\right)=-1,6:\dfrac{5}{3}=-\dfrac{8}{5}.\dfrac{3}{5}=\dfrac{-24}{25}\)

b)\(\left(\dfrac{-2}{3}\right)+\dfrac{3}{4}-\left(-\dfrac{1}{6}\right)+\left(\dfrac{-2}{5}\right)=-\dfrac{2}{3}+\dfrac{3}{4}+\dfrac{1}{6}-\dfrac{2}{5}=\dfrac{-40+45+10-24}{60}=\dfrac{-9}{60}=\dfrac{-3}{20}\)

c)\(\left(\dfrac{-3}{7}:\dfrac{2}{11}+\dfrac{-4}{7}:\dfrac{2}{11}\right).\dfrac{7}{33}=\left(\dfrac{-3}{7}.\dfrac{11}{2}+\dfrac{-4}{7}.\dfrac{11}{2}\right).\dfrac{7}{33}=\left[\dfrac{11}{2}\left(\dfrac{-3}{7}+\dfrac{-4}{7}\right)\right].\dfrac{7}{33}=\dfrac{-11}{2}.\dfrac{7}{33}=\dfrac{-7}{6}\)

d)\(\dfrac{-5}{8}+\dfrac{4}{9}:\left(\dfrac{-2}{3}\right)-\dfrac{7}{20}.\left(\dfrac{-5}{14}\right)=\dfrac{-5}{8}-\dfrac{4}{9}.\dfrac{3}{2}+\dfrac{1}{8}=\dfrac{-5}{8}+\dfrac{1}{8}-\dfrac{2}{3}=-\dfrac{7}{6}\)

30 tháng 11 2023

- Bạn cho mình hỏi đây là bài mấy ở SGK dc ko ạ ?

30 tháng 11 2023

Đây là BT ngoài bạn ơi

6 tháng 12 2021

đang thi mik ko giúp đc, xin lỗi nha

6 tháng 12 2021

Bh bạn thi xong vậy ạ 

24 tháng 11 2021

câu hỏi đâu

24 tháng 11 2021

https://www.youtube.com/channel/UCUbQt-KjcTI7_W41LqBBwtg

Sửa đề: \(\dfrac{7}{x+5}-\dfrac{x}{5-x}=\dfrac{-x^2}{25-x^2}\)

\(\Leftrightarrow7\left(x-5\right)+x\left(x+5\right)=x^2\)

\(\Leftrightarrow7x-35+5x=0\)

=>12x=35

hay x=35/12

1:

(SAB), (SBC) vuông góc (BAC)

=>SB vuông góc (ABC)

AC vuông góc AB,SB

=>AC vuông góc (SAB)

=>AC vuông góc BH

mà SA vuông góc BH

nên BH vuông góc (SAC)

=>BH vuông góc SC

mà SC vuông góc BK

nên SC vuông góc (BHK)

c: (SH;(BHK))=góc SHK=(SA;BHK)

BC=BA/cos60=2a

SC=căn SB^2+BC^2=ăcn 5

SB^2=SK*SC

=>SK=a*căn 5/5

SA=căn SB^2+AB^2=a*căn 2

SB^2=SH*SA

=>SH=a*căn 2/2

sin SHK=căn 10/5

=>góc SHK=39 độ

e: 7x<=9x-5

=>7x-9x<=-5

=>-2x<=-5

=>x>=5/2

f: \(\Leftrightarrow7x-5< 8\left(3x-1\right)-4\left(2x+4\right)\)

=>7x-5<24x-8-8x-16

=>7x-5<16x-24

=>-9x<-19

hay x>19/9

30 tháng 3 2022

đúng idol e 😭